CN104060052A - Automatic air-pressure pouring electric furnace with induction vacuum refining-degassing function - Google Patents
Automatic air-pressure pouring electric furnace with induction vacuum refining-degassing function Download PDFInfo
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- CN104060052A CN104060052A CN201410322208.5A CN201410322208A CN104060052A CN 104060052 A CN104060052 A CN 104060052A CN 201410322208 A CN201410322208 A CN 201410322208A CN 104060052 A CN104060052 A CN 104060052A
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Abstract
The invention relates to an automatic air-pressure pouring electric furnace with an induction vacuum refining-degassing function. The electric furnace structurally comprises four inner furnace lid fixing hooks (1), a furnace lining 4, a bottom furnace lining 5, a tilting furnace oil cylinder 9, a lower part of a furnace shell 10, a furnace cradle 11, a set of upper and lower furnace shell connecting bolts 12, a hinge pin 13, an upper part of the furnace shell 14 and an induction coil 21. The electric furnace has the advantages that a novel demand on the pouring operation of a fully automatic thin-strip continuous casting industry is solved, the limitations on the molten metal vacuum refining of a thin-strip continuous casting production line and high-speed operation of the automatic air-pressure pouring are solved, the quality of a product is improved, the productivity is improved, the production cost is reduced, the labor-hour of the pouring operation is reduced, the utilization rate of molten metal is increased and wastes are decreased; the electric furnace has the characteristics of large electric capacity, accurate and timely molten metal supply, high degree of automation, strong process applicability, stable quality, uniform pouring temperature, consistent pouring curve and the like; the yield is increased, and the pouring cycle is shortened; the operating conditions are improved and the operators get rid of a high-temperature and smoky operating environment.
Description
Technical field
What the present invention relates to is the automatic barometric pouring electric furnace of the degassed function of a kind of vacuum induction refining, belongs to automatic thin strap continuous casting industry refining pouring practice equipment field.
Background technology
In the pouring procedure of automatic barometric pouring electric furnace with the degassed function of vacuum induction refining, there are electromagnetic pump formula, plunger tpe, tilting etc.
Electromagnetic pump formula because of the current consumption in when cast larger, the current consumption during casting molding machine cast of certain model equates with the current consumption that inclusion is incubated, so current, on power saving, is worthy of consideration.
It is more difficult that plunger tpe is controlled liquid level, also has problem the work-ing life of plunger.
Tilting is difficult to guarantee to cast precision.
Domestic still not for the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining of thin strap continuous casting industry, in order to meet the demand of full-automatic thin strap continuous casting industry pouring practice.
Summary of the invention
What the present invention proposed is the automatic barometric pouring electric furnace of the degassed function of a kind of vacuum induction refining, its object is to meet the new processing requirement of full-automatic thin strap continuous casting industry pouring practice, meeting under the prerequisite of automatic air pressure cast high-speed cruising, can meet again the vacuum induction refining degasification technique requirement to thin strap continuous casting production line liquid metal, greatly improve its product quality.
Technical solution of the present invention: the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining, is characterized in that comprising four inner roof brick stay hooks, furnace lining, end furnace lining, turndown oil cylinder, furnace shell bottom, grate, one group of upper and lower furnace shell joint bolt, bearing pin, furnace shell top, ruhmkorff coil, wherein furnace shell bottom is connected with furnace shell top by upper and lower furnace shell joint bolt, furnace shell top is connected with grate by bearing pin, grate is connected with the steel cylinder afterbody of turndown oil cylinder, furnace shell top is connected with the piston rod head of turndown oil cylinder, the bottom of furnace shell bottom is end furnace lining fixedly, on end furnace lining, place ruhmkorff coil, surrounding's storing yoke of ruhmkorff coil, furnace shell bottom and yoke standing bolt screw thread join, yoke standing bolt is yoke fixedly, furnace lining is fixed on end furnace lining, furnace lining is inner at ruhmkorff coil, the centre of furnace lining is burner hearth, inner roof brick is established on the top of this burner hearth, inner roof brick links together by four inner roof brick stay hooks and outer bell.
Advantage of the present invention: 1) solved the new demand of full-automatic thin strap continuous casting industry pouring practice, the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining is the crucial support equipment of High-Speed Automatic thin strap continuous casting industry, integrates vacuum induction Degassing Technology, air pressure type automatic casting technology.Solved the refining of thin strap continuous casting production line liquid metal, the restriction of automatic air pressure cast high-speed cruising, greatly improved its product quality, boosted productivity; 2) vacuum induction Degassing Technology-be the replacement scheme of a kind of economy of ladle metallurgy technology.To the refining of thin strap continuous casting production line liquid metal, carry out degassed, deoxidation, desulfurization and taking-up oxide inclusion, and then improve its product quality; 3) features such as the air pressure type automatic casting electric furnace of vacuum induction Degassing Technology, has furnace volume large, and molten metal supply is accurate, timely, and level of automation is high, and technique suitability is strong; 4) reduce production costs, reduce pouring operation man-hour, improve molten metal utilization ratio, reduce waste product.Steady quality, teeming temperature is even, and cast curve is consistent; 5) increase output, shorten casting cycle; 6) improve operational condition, operator breaks away from the operating environment of high temperature thickness.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the automatic barometric pouring electric furnace of the degassed function of a kind of vacuum induction refining.
Fig. 2 is the sectional structure schematic diagram of Fig. 1.
In figure 1 is inner roof brick stay hook, the 2nd, discharge port cleaning cover plate, the 3rd, discharge port valve, the 4th, furnace lining, the 5th, end furnace lining, the 6th, gas permeable brick, the 7th, bottom blowpipe, the 8th, gas permeable brick stationary magazine creel, the 9th, turndown oil cylinder, the 10th, furnace shell bottom, the 11st, grate, the 12nd, upper and lower furnace shell joint bolt, the 13rd, bearing pin, the 14th, furnace shell top, the 15th, discharge port cleaning cover plate, the 16th, inner roof brick, the 17th, outer bell, the 18th, inflation valve, the 19th, yoke standing bolt, the 20th, yoke, the 21st, ruhmkorff coil.
Embodiment
Contrast accompanying drawing 1,2, the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining, its structure comprises four inner roof brick stay hooks 1, furnace lining 4, end furnace lining 5, gas permeable brick 6, bottom blowpipe 7, gas permeable brick stationary magazine creel 8, turndown oil cylinder 9, furnace shell bottom 10, grate 11, one group of upper and lower furnace shell joint bolt 12, bearing pin 13, furnace shell top 14, ruhmkorff coil 21, wherein furnace shell bottom 10 is connected with furnace shell top 14 by upper and lower furnace shell joint bolt 12, furnace shell top 14 is connected with grate 11 by bearing pin 13, grate 11 is connected with the steel cylinder afterbody of turndown oil cylinder 9, furnace shell top 14 is connected with the piston rod head of turndown oil cylinder 9, the bottom of furnace shell bottom 10 is end furnace lining 5 fixedly, on end furnace lining 5, place ruhmkorff coil 21, surrounding's storing yoke 21 of ruhmkorff coil 21, furnace shell bottom 10 joins with yoke standing bolt 19 screw threads, yoke standing bolt 19 is yoke 20 fixedly, furnace lining 4 is fixed on end furnace lining 5 and ruhmkorff coil 21 inside, the centre of furnace lining 4 is burner hearth, inner roof brick 16 is established on the top of this burner hearth, inner roof brick 16 links together by four inner roof brick stay hooks 1 and outer bell 17.
The upper right side of furnace lining 4 is charging opening, and this charging opening directly communicates with furnace lining 4 internal furnaces; The left upper end of furnace lining 4 is discharge port, and this discharge port communicates with the tapping channel in furnace lining 4 internal furnace left sides, and tapping channel bottom is provided with a through hole, and this through hole communicates with furnace lining 4 internal furnaces.
Gas permeable brick 6 is placed in the bottom of furnace lining 4.
The sidewall of described outer bell 17 has bleeding point, and bleeding point is connected with external vacuum system, and outer bell 17 tops are fixed with an inflation valve 18, and this inflation valve 18 is connected with external air source.
Gas permeable brick 6 is placed at the bottom of furnace lining 4, and gas permeable brick is for 6 times gas permeable brick stationary magazine creel 8, and gas permeable brick stationary magazine creel 8 is fixed on the bottom of furnace shell bottom 10;
Gas permeable brick 6 bottoms are connected to bottom blowpipe 7, and this bottom blowpipe 7 is connected with external air source.
The charging opening of furnace lining 4 upper right sides is discharge port cleaning cover plate 15 fixedly, on the discharge port of furnace lining 4 left upper ends, is discharge port valve 3; The discharge port of furnace lining 4 left upper ends is established fixedly discharge port cleaning cover plate 2.
During enforcement
Furnace shell bottom 10 is connected with a furnace shell top 14 by one group of upper and lower furnace shell joint bolt 12, furnace shell top 14 is again by two bearing pins 13, be connected with a grate 11, the steel cylinder afterbody of two turndown oil cylinders 9 is connected with a grate 11, its piston rod head is connected with a furnace shell top 14, flexible by two turndown oil cylinder 9 piston rods, drives a furnace shell bottom 10 and a furnace shell top 14, around 13 rotations of two bearing pins, finally complete turndown action.At the bottom of one, furnace lining 5 is by stamp mass technique, be fixed on 10 bottoms, a furnace shell bottom, at the bottom of a ruhmkorff coil 21 is seated in one on furnace lining 5, a ruhmkorff coil 21 around, put one group of yoke 20, one group of yoke standing bolt 19, by the screw thread on a furnace shell bottom 10, withstands one group of yoke 20, and a ruhmkorff coil 21 is fixed on stove central authorities the most at last.Furnace lining 4 is by stamp mass technique, be fixed on one at the bottom of on furnace lining 5 and ruhmkorff coil 21 inside, its upper right side is charging opening, left side is provided with tapping channel, communicates with the discharge port of left upper end, centre is burner hearth.The upper furnace of a furnace lining 4 is inner roof bricks 16, and it,, by four inner roof brick stay hooks 1, links together with an outer bell 17.The sidewall of an outer bell 17 has bleeding point, and bleeding point is connected with external vacuum system, and outer bell 17 tops are fixed with 18, one inflation valves 18 of an inflation valve and are connected with external air source.A gas permeable brick 6 is placed at the bottom of a furnace lining 4, is fixed on a gas permeable brick stationary magazine creel 8 of 10 bottoms, a furnace shell bottom, upwards holds a gas permeable brick 6.Gas permeable brick 6 bottoms are connected to a bottom blowpipe 7, and this bottom blowpipe 7 is connected with external air source.Furnace lining 4 upper right side charging openings are fixed with a discharge port cleaning cover plate 15, and its left upper end discharge port is fixed with a discharge port cleaning cover plate 2.
End furnace lining 5 is by stamp mass technique, be fixed on 10 bottoms, furnace shell bottom, ruhmkorff coil 22 is seated on end furnace lining 5, ruhmkorff coil 22 around, put one group of yoke 21, one group of yoke standing bolt 19, by the screw thread on furnace shell bottom 10, withstands one group of yoke 20, and a ruhmkorff coil 21 is fixed on stove central authorities the most at last.
Furnace lining 4, by stamp mass technique, is fixed on end furnace lining 5 and ruhmkorff coil 21 inside, and the upper right side of furnace lining 4 is charging opening, and this charging opening directly communicates with furnace lining 4 internal furnaces; The left upper end of furnace lining 4 is discharge port, and this discharge port communicates with the tapping channel in furnace lining 4 internal furnace left sides, and tapping channel bottom is provided with a through hole, and this through hole communicates with furnace lining 4 internal furnaces.
Upper furnace in furnace lining 4 is inner roof brick 16, and inner roof brick 16, by four inner roof brick stay hooks 1, links together with outer bell 17.
The sidewall of outer bell 17 has bleeding point, and bleeding point is connected with external vacuum system, and outer bell 17 tops are fixed with an inflation valve 18, and this inflation valve 18 is connected with external air source.
Gas permeable brick 6 is placed at the bottom of furnace lining 4, the bottom fixed ventilation brick stationary magazine creel 8 of furnace shell bottom 10, and gas permeable brick stationary magazine creel 8 is upwards held a gas permeable brick 6.
Gas permeable brick 6 bottoms are connected to bottom blowpipe 7, and this bottom blowpipe 7 is connected with external air source.
The charging opening of furnace lining 4 upper right sides is discharge port cleaning cover plate 15 fixedly, and the discharge port of furnace lining 4 left upper ends is discharge port cleaning cover plate 2 fixedly.
Working process: open outer bell 17, by mother alloy or block raw material packs in burner hearth.Or open discharge port and clear up cover plate 15, by the molten iron having melted, directly pour in burner hearth → energising of electric furnace intermediate frequency power supply, carry out that non-vacuum melting → melt iron to 1500 degree Celsius → having a power failure is cooled to 1400 degrees Celsius, the outer bell 17 of 1520 degrees Celsius of slag hittings → be warming up to again → cover or discharge port cleaning cover plate 15 → after electric furnace intermediate frequency power supply has a power failure, vacuum system energising, start to vacuumize 20 minutes, after carrying out degassed refining → degassed refining and completing, vacuum system power-off, by bottom blowpipe 7 and gas permeable brick 6, from stove bottom, 1450 degrees Celsius of argon gas is blown in molten iron → insulations, open discharge port valve 3, open the inflation valve 18 at outer bell 17 tops simultaneously, be blown into argon gas, molten iron is extruded from discharge port, flow into strip caster casting ladle, carrying out strip cast produces.
In addition, as required, can open discharge port cleaning cover plate 2 and discharge port cleaning cover plate 15, charging opening and discharge port are cleared up.By turndown oil cylinder 9, complete turndown action, residue molten iron is poured out.
Invent a kind of in order to meet the automatic barometric pouring electric furnace with the degassed function of vacuum induction refining of full-automatic thin strap continuous casting industry pouring practice.
The automatic barometric pouring electric furnace of the degassed function of vacuum induction refining is the crucial support equipment of High-Speed Automatic thin strap continuous casting industry, integrates vacuum induction Degassing Technology, air pressure type automatic casting technology.Solved the refining of thin strap continuous casting production line liquid metal, the restriction of automatic air pressure cast high-speed cruising, greatly improved its product quality, boosted productivity.
Vacuum induction Degassing Technology is the replacement scheme of a kind of economy of ladle metallurgy technology.To the refining of thin strap continuous casting production line liquid metal, carry out degassed, deoxidation, desulfurization and taking-up oxide inclusion, and then improve its product quality feature.
Vertical and cylindrical vacuum-sealing body of heater, internal furnace is refractory materials, while filling liquid metal, can regulate as required induction heater power, makes molten iron refining, insulation, intensification.
After the logical medium frequency electric of the inductor coil of the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining, make molten metal form eddy current and produce heat, thereby to molten metal transferring heat in bag.For making inductor block volume little, lightweight, adopt water-cooling structure, by chilled water unit, inductor block shell is carried out to water-cooled to head piece, coil.Supply unit comprises transformer, main switch, variable-frequency power sources etc., by controlling board, to inductor coil, supplies with selected electric power.Because inductor block heats the molten metal that keeps proper temperature.
According to the cast instruction of full-automatic thin strap continuous casting beat, by Pneumatic controller, in bag, pressurize, Metal Melting liquid level is pressed to discharge port and pours into a mould to casting apparatus.Weight metal is measured with sensor or liquid level emasuring device.Weight metal becomes electrical signal by sensor, is determined to added air pressure in bag, then controls the air pressure in wrapping by Pneumatic controller by cast controlling board.Necessary pressure reduction instrument, various weather gauge, pressurization calculagraph etc. while pressure pouring being housed on pouring operation dish.For carrying out automatic casting, be provided with mechanism, for manually pouring into a mould, be provided with essential operation utensil.
Compare with other pouring procedure, the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining has molten metal and obtains vacuum outgas, deoxidation, desulfurization and taking-up oxide inclusion, and then greatly reduce costs, improve lumber recovery, improve the advantages such as its product quality, have in addition energy-conservation, cast precision high, applicable to all beat-type pouring practice lines, while injecting molten metal, also can pour into a mould, therefore can operate continuously.Utilize vacuum chamber inert gas pressure to pour into a mould, so teeming temperature and rational curve immobilize, molten metal non-oxidation, casting quality are stablized.Body moves easy, thus when casting mold gate location changes, can any mobile pouring position, the refractory materials of inclusion and inductor block is stable for a long time work-ing life, and security device is perfect.According to different requirements, can be used in conjunction with the auxiliary facilitys such as device for adding inoculant, defective casting mold verifying attachment.
Claims (7)
1. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining, is characterized in that comprising four inner roof brick stay hooks, furnace lining, end furnace lining, turndown oil cylinder, furnace shell bottom, grate, one group of upper and lower furnace shell joint bolt, bearing pin, furnace shell top, ruhmkorff coil, wherein furnace shell bottom is connected with furnace shell top by upper and lower furnace shell joint bolt, furnace shell top is connected with grate by bearing pin, grate is connected with the steel cylinder afterbody of turndown oil cylinder, furnace shell top is connected with the piston rod head of turndown oil cylinder, the bottom of furnace shell bottom is end furnace lining fixedly, on end furnace lining, place ruhmkorff coil, surrounding's storing yoke of ruhmkorff coil, furnace shell bottom and yoke standing bolt screw thread join, yoke standing bolt is yoke fixedly, furnace lining is fixed on end furnace lining, furnace lining is inner at ruhmkorff coil, the centre of furnace lining is burner hearth, inner roof brick is established on the top of this burner hearth, inner roof brick links together by four inner roof brick stay hooks and outer bell.
2. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 1, the upper right side that it is characterized in that described furnace lining is charging opening, this charging opening directly communicates with furnace lining internal furnace; The left upper end of furnace lining is discharge port, and this discharge port communicates with the tapping channel in furnace lining internal furnace left side, and tapping channel bottom is provided with a through hole, and this through hole communicates with furnace lining internal furnace.
3. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 1, is characterized in that gas permeable brick is placed in the bottom of described furnace lining; Under gas permeable brick, be gas permeable brick stationary magazine creel, gas permeable brick stationary magazine creel is fixed on the bottom of furnace shell bottom.
4. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 1, the sidewall that it is characterized in that described outer bell has bleeding point, bleeding point is connected with external vacuum system, and outer bell top is fixed with an inflation valve, and this inflation valve is connected with external air source.
5. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 3, is characterized in that the bottom of described gas permeable brick is connected to bottom blowpipe, and this bottom blowpipe is connected with external air source.
6. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 1, the charging opening that it is characterized in that described furnace lining upper right side is discharge port cleaning cover plate fixedly, establishes discharge port valve on the discharge port of furnace lining left upper end; The discharge port of furnace lining left upper end is established fixedly discharge port cleaning cover plate.
7. the automatic barometric pouring electric furnace of the degassed function of vacuum induction refining according to claim 1, is characterized in that described turndown oil cylinder has two, bearing pin to have two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410322208.5A CN104060052A (en) | 2014-07-08 | 2014-07-08 | Automatic air-pressure pouring electric furnace with induction vacuum refining-degassing function |
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| CN201410322208.5A CN104060052A (en) | 2014-07-08 | 2014-07-08 | Automatic air-pressure pouring electric furnace with induction vacuum refining-degassing function |
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| CN103743235A (en) * | 2013-12-31 | 2014-04-23 | 常州市卓信机电设备制造有限公司 | Coreless air pressure thermal-insulating pouring furnace |
| CN203976851U (en) * | 2014-07-08 | 2014-12-03 | 苏州振吴电炉有限公司 | The automatic barometric pouring electric furnace of the degassed function of vacuum induction refining |
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2014
- 2014-07-08 CN CN201410322208.5A patent/CN104060052A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993526Y (en) * | 2006-12-07 | 2007-12-19 | 广州穗港兴铜缆制品有限公司 | Tiltable split power frequency induction furnace |
| CN101706205A (en) * | 2009-11-24 | 2010-05-12 | 苏州有色金属研究院有限公司 | Pressure-flow-type magnesium alloy smelting heat insulating furnace |
| CN101927333A (en) * | 2010-09-02 | 2010-12-29 | 许小忠 | Magnesium alloy electromagnetic pump quantitative casting furnace |
| CN102923707A (en) * | 2012-11-09 | 2013-02-13 | 朱兴发 | Fusion vacuum processing furnace and productive technology used for producing of 6N grade solar-grade polycrystalline silicon |
| CN103743235A (en) * | 2013-12-31 | 2014-04-23 | 常州市卓信机电设备制造有限公司 | Coreless air pressure thermal-insulating pouring furnace |
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Application publication date: 20140924 |